Abrams reminds me of JMS; a strong start and then a fade out. Alias was great, but finished badly. Lost was great, but finished worse. I forgot about Undercover. His movies are just loud popcorn flicks of no substance. Fringe looks good, although I haven't been following it, but chances are it will end badly.

On the television side, you seem to be giving Abrams a lot of credit (or blame) where it's not deserved. His active involvement as a writer and/or director on those shows has been limited to their early life. Consider: Abrams' last writing credit on Lost was the season three premiere; his last writing credit on Fringe was the season two premiere; his last writing credit on Alias was the fourth season premiere; his last writing credit on Undercovers was the third episode.